" All I have written seems chaff to me." Thus six months before his death spoke the greatest mind of the Middle Ages. He had up to this time lived a life full of labour, lecturing, writing, dictating, and praying; and now after having received a revelation he laid aside his pen and would write no more. His favourite disciple, with a directness characteristic of him, asked him why he would not write when he was in the midst of a great work; to which he simply replied, "I cannot." Being pressed still further he again said, " I cannot, for all that I have written seems chaff to me." This...